Answer:
−9y
^2
−20x+29.32
Step-by-step explanation:
−9y
^2 −20x+(4.32+25)
−9y
^2
−20x+29.32
Answer:
32-26i
Step-by-step explanation:
(4+3i)(2-8i)
8+6i-32i-24i^2
8-26i-24(-1)
8-26i+24
-26i+32
Remember that i^2=-1.
45 miles per hour is equal to 45 miles per 60 minutes. Let’s make it into a ratio, 45:60, and simplify it to 3:4 by dividing each by 15. Now, we can multiply the simplified ratio by 10 to get 30:40, which translates to 30 miles in 40 minutes.
Answer: 30 miles
<span>The answer is B. (2, 2).
The midpoint (M) of two points (x1, y1) and (x2, y2) is:
M = ((x1 + x2)/2, (y1 + y2)/2).
We know that the points of CD are C(-4, 8) and D(8, -4). So we have:
x1 = -4, y1 = 8, x2 = 8, y2 = -4.
Now when we have all we need, let's calculate the midpoint M.
M = ((x1 + x2)/2, (y1 + y2)/2);
M = (((-4) + 8)/2, (8 + (-4))/2);
M = ((8 - 4)/2, (8 - 4)/2);
M = (4/2, 4/2); M = (2, 2).
Therefore, the midpoint of CD is (2, 2).</span>
